Abstract : This collection of abstracts, compiled by the Federal Remediation Technologies Roundtable, describes field demonstrations of innovative technologies to treat hazardous waste at contaminated sites. This document updates and expands inforrnation presented in the second edition of the collection which was published in 1992. An asterisk (*) in the Table of Contents raarks synopses appearing for the first time in this edition. The collection is intended to be an information resource for hazardous waste site project managers for assessing the availability and viability of innovative technologies for treating contaminated ground water, soils, and sludge. It also is intended to assist government agencies in coordinating ongoing hazardous waste remediation technology research initiatives, particularly those sponsored by the U.S. Environmental Protection Agency (EPA), the U.S. Department of Defense (DOD), the U.S. Department of Energy (DOE), and the U.S. Department of Interior (DOI). Innovative technologies, for the purposes of this compendium, are defined as those for which detailed performance and cost data are not readily available.